CN216305934U

CN216305934U - Balanced pipe jacking device of soil

Info

Publication number: CN216305934U
Application number: CN202123221642.9U
Authority: CN
Inventors: 杨振奇; 于栋; 王轶松; 吴超; 王远航
Original assignee: China Construction Sixth Engineering Division Water Conservancy and Hydropower Construction Group Co Ltd
Current assignee: China Construction Sixth Engineering Division Water Conservancy and Hydropower Construction Group Co Ltd
Priority date: 2021-12-21
Filing date: 2021-12-21
Publication date: 2022-04-15
Anticipated expiration: 2031-12-21

Abstract

The utility model relates to a soil balance pipe jacking device which comprises a pipe jacking machine body, wherein a cutting tool is installed at the opening end of the pipe jacking machine body, a first motor used for driving the cutting tool to work is installed at one end of an installation column, a sewage discharge cavity used for discharging a cement mixture is formed in the other end of the installation column, a plurality of conveying cavities are uniformly distributed around the installation column, a mud pump is installed on a sewage discharge pipe, and a water injection assembly is installed between a cutting blade and the cutting tool. According to the utility model, the cutting tool and the cutting blades work in a matching manner, so that soil is fully crushed, and the crushed soil is wetted by the water injection assembly to form a cement mixture, so that the cement mixture is conveniently pumped out by a slurry pump, the slag discharging efficiency is improved, and the discharge port is not easy to block. The cutter disc is rotatably connected with the pipe jacking machine body, and the pipe jacking machine body has a supporting function on the cutter disc, so that the cutter disc can drive the crushing blade and the pushing blade to be pushed forwards; a plurality of water nozzles are installed on the water injection ring, and water is injected into soil from a plurality of angles of the water nozzles, so that slurry can be formed conveniently.

Description

Balanced pipe jacking device of soil

Technical Field

The utility model relates to the technical field of pipeline construction, in particular to a soil balance pipe jacking device.

Background

The pipe-jacking construction is a non-excavation construction method, and is a pipeline burying construction technology without excavation or with few excavations. The pipe jacking construction is that the friction force between the pipeline and the surrounding soil is overcome by means of the jacking force generated by jacking equipment in a working pit, the pipeline is jacked into the soil according to the designed gradient, and earthwork is transported away. The pipe jacking construction is completed through the earth balance pipe jacking device, the earth cut by the existing earth balance pipe jacking device is in a mud ball shape, the slag discharging efficiency is low, and the discharging port is easy to block.

Disclosure of Invention

The utility model aims to solve the defects of the prior art and provides a soil balance pipe jacking device.

In order to achieve the purpose, the utility model adopts the following technical scheme: a soil balance pipe jacking device comprises a pipe jacking machine body, wherein a cutting tool is installed at the opening end of the pipe jacking machine body, an installation column is connected to the middle part in the pipe jacking machine body, a first motor used for driving the cutting tool to work is installed at one end of the installation column, a sewage discharge cavity used for discharging cement mixture is formed in the other end of the installation column, a plurality of conveying cavities are uniformly distributed around the installation column, the axis of each conveying cavity is parallel to the axis of the installation column, a partition plate is installed at one end, away from the cutting tool, of each conveying cavity, a second motor is installed at one side, away from the cutting tool, an output shaft of each second motor penetrates through the partition plate and then is connected with a rotating shaft, cutting blades are installed at the other end of the rotating shaft, spiral blades used for conveying the cement mixture are installed on the rotating shaft, the front end of each sewage discharge cavity is communicated with the corresponding conveying cavity, and the cement mixture at the cutting tool is conveyed into the sewage discharge cavity by the spiral blades, the blowdown intracavity is equipped with the blow off pipe, and the other end and the outside blowdown pond of blow off pipe are connected, install the slush pump on the blow off pipe, install the water injection subassembly between cutting blade and the cutting tool.

The cutting tool comprises a tool disc, the inner side of the tool disc is rotatably connected with the pipe jacking machine body, the center of the inner side of the tool disc is connected with an output shaft of a first motor, a plurality of fan-shaped mud inlet holes are formed in the tool disc, the center of the outer side of the tool disc is connected with a crushing blade, and a plurality of propelling blades are installed on the outer side of the tool disc.

The inner side of the cutter disc is provided with a sliding ring, the pipe jacking machine body is provided with an annular groove for accommodating the sliding ring, a bearing is arranged between the sliding ring and the annular groove, and the sliding ring and the annular groove are rotatably connected through the bearing.

The crushing blade is of a sheet structure, the cross section of the crushing blade is in an isosceles triangle shape, and the sharp angle of the crushing blade faces outwards.

The water injection assembly comprises a hollow water injection ring embedded at the front end of the inner wall of the pipe jacking machine body, the inner cavity of the water injection ring is used for containing water, a plurality of water spray nozzles are mounted on the inner side of the water injection ring, and the water injection ring is connected with a water inlet pipe.

The inside of water injection ring is installed a plurality of support columns, and the height of support column is higher than the height of water spout.

The supporting ring is installed to the rotation axis near the one end of cutting tool, and the supporting ring rotates with the rotation axis to be connected, even has a plurality of connecting rods on the lateral wall of supporting ring, and the tip and the push pipe organism inner wall or the erection column outer wall of connecting rod are connected.

The inlet of the sewage discharge pipe is a trumpet-shaped opening.

The conveying cavity is a cylindrical cavity.

The support column is a rubber column.

The utility model has the beneficial effects that: according to the utility model, the cutting tool and the cutting blades work in a matching manner, so that soil is fully crushed, and the crushed soil is wetted by the water injection assembly to form a cement mixture, so that the cement mixture is conveniently pumped out by a slurry pump, the slag discharging efficiency is improved, and the discharge port is not easy to block. The cutter disc is rotatably connected with the pipe jacking machine body, and the pipe jacking machine body has a supporting function on the cutter disc, so that the cutter disc can drive the crushing blade and the pushing blade to be pushed forwards; a plurality of water nozzles are installed on the water injection ring, and water is injected into soil from a plurality of angles of the water nozzles, so that slurry can be formed conveniently.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the construction of the cutting tool;

FIG. 3 is an enlarged view of A in FIG. 1;

in the figure: 1-a pipe jacking machine body; 2-a cutting tool; 21-a cutter disc; 22-a mud inlet hole; 23-a crushing blade; 24-a pusher blade; 25-a slip ring; 3-mounting a column; 4-motor number one; 5-a sewage draining cavity; 6-a delivery chamber; 7-a partition plate; 8-motor number two; 9-a rotating shaft; 10-cutting the blade; 11-helical blades; 12-a sewage draining pipe; 13-a slurry pump; 14-a water injection assembly; 141-water injection ring; 142-a water spray nozzle; 143-water inlet pipe; 144-support columns; 15-a support ring; 16-a connecting rod;

the following detailed description will be made in conjunction with embodiments of the present invention with reference to the accompanying drawings.

Detailed Description

The utility model is further illustrated by the following examples in conjunction with the accompanying drawings:

as shown in fig. 1 to 3, a soil balance pipe jacking device comprises a pipe jacking machine body 1, a cutting tool 2 is installed at an opening end of the pipe jacking machine body 1, a mounting column 3 is connected to the middle part in the pipe jacking machine body 1, a first motor 4 for driving the cutting tool 2 to work is installed at one end of the mounting column 3, a sewage discharge cavity 5 for discharging cement mixture is arranged at the other end of the mounting column 3, a plurality of conveying cavities 6 are uniformly distributed around the mounting column 3, the conveying cavities 6 are cylindrical cavities, the axis of the conveying cavities 6 is parallel to the axis of the mounting column 3, a partition plate 7 is installed at one end of the conveying cavity 6 far away from the cutting tool 2, a second motor 8 is installed at one side of the partition plate 7 far away from the cutting tool 2, an output shaft of the second motor 8 is connected with a rotating shaft 9 after penetrating through the partition plate 7, a cutting blade 10 is installed at the other end of the rotating shaft 9, and a spiral blade 11 for conveying cement mixture is installed on the rotating

shaft

9, 5 front ends in blowdown chamber and the 6 intercommunications in transport chamber, helical blade 11 will be located the cement mixture of cutting tool 2 department and carry to blowdown chamber 5 in, be equipped with blow off pipe 12 in the blowdown chamber 5, the other end and the outside blowdown pond of blow off pipe 12 are connected, installs slush pump 13 on the blow off pipe 12, and the import of blow off pipe 12 is the uncovered of tubaeform, the mud suction blow off pipe 12 of being convenient for.

A water injection assembly 14 is installed between the cutting blade 10 and the cutting tool 2. The water injection assembly 14 comprises a hollow water injection ring 141 embedded at the front end of the inner wall of the top pipe body 1, the inner cavity of the water injection ring 141 is used for containing water, a plurality of water nozzles 142 are installed on the inner side of the water injection ring 141, and a water inlet pipe 143 is connected to the water injection ring 141. A plurality of supporting columns 144 are installed on the inner side of the water injection ring 141, and the height of the supporting columns 144 is higher than that of the water spray nozzles 142. The supporting column 144 is a rubber column, which has a certain elasticity, and the supporting column 144 is higher, so that the water nozzle 142 is protected to a certain extent.

The cutting tool 2 comprises a tool disc 21, the inner side of the tool disc 21 is rotatably connected with the pipe jacking machine body 1, the center of the inner side of the tool disc 21 is connected with an output shaft of the first motor 4, a plurality of fan-shaped mud inlet holes 22 are formed in the tool disc 21, a crushing blade 23 is connected with the center of the outer side of the tool disc 21, and a plurality of propelling blades 24 are installed on the outer side of the tool disc 21. The inner side of the cutter disc 21 is provided with a slip ring 25, the top tube machine body 1 is provided with an annular groove for accommodating the slip ring 25, a bearing is arranged between the slip ring 25 and the annular groove, and the slip ring 25 and the annular groove are rotatably connected through the bearing. The crushing blade 23 is a sheet structure, the cross section of the crushing blade is an isosceles triangle, and the sharp angle of the crushing blade 23 faces outward.

A support ring 15 is installed at one end, close to the cutting tool 2, of the rotating shaft 8, the support ring 15 is rotatably connected with the rotating shaft 8, a plurality of connecting rods 16 are connected to the outer side wall of the support ring 15, the end portions of the connecting rods 16 are connected with the inner wall of the pipe jacking machine body 1 or the outer wall of the mounting column 3, and the support ring 15 and the connecting rods 16 work in a matched mode and are used for supporting the rotating shaft 8.

When the mud pump works, the first motor 4 works to drive the cutter disc 21 of the cutting cutter 2 to rotate, the crushing blade 23 and the pushing blade 24 rotate along with the cutter disc 21, the crushing blade 23 firstly crushes mud, the pushing blade 24 then cuts the mud, the cut mud enters the inner cavity of the pipe jacking machine body 1 through the mud inlet hole 22, the second motor 8 works to drive the rotating shaft 9 to rotate, the cutting blade 10 rotates along with the rotation of the cutting blade and further cuts the mud, the water injection assembly 14 injects water into the mud, the mud is injected with water while being cut to form mud, the mud conveys the spiral blade 11 in the conveying cavity 6 into the drain pipe 12, the mud is discharged through the drain pipe 12, and the mud pump 13 provides power for discharging. According to the utility model, the cutting tool 2 and the cutting blade 10 work in a matching manner, so that soil is fully crushed, and the crushed soil is wetted by the water injection assembly 14 to form a cement mixture (slurry), so that the cement mixture is conveniently pumped out by the slurry pump 13, the slag discharging efficiency is improved, and the discharge port is not easy to block. The cutter disc 21 is rotatably connected with the pipe jacking machine body 1, and the pipe jacking machine body 1 has a supporting function on the cutter disc 21, so that the cutter disc 21 drives the crushing blade 23 and the pushing blade 24 to be pushed forwards; the water injection ring 141 is provided with a plurality of water injection nozzles 142, and the plurality of water injection nozzles 142 inject water into soil at a plurality of angles, so that slurry can be formed conveniently.

The "first" and "second" in the present invention are only for distinguishing the names of different parts, and do not represent the specifications thereof, nor the mounting order thereof.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

The utility model has been described in connection with the accompanying drawings, it is to be understood that the utility model is not limited to the specific embodiments disclosed, but is intended to cover various modifications, adaptations or uses of the utility model, and all such modifications and variations are within the scope of the utility model.

Claims

1. The soil balance pipe jacking device is characterized by comprising a pipe jacking machine body (1), a cutting tool (2) is installed at the opening end of the pipe jacking machine body (1), a mounting column (3) is connected to the middle part in the pipe jacking machine body (1), a motor (4) for driving the cutting tool (2) to work is installed at one end of the mounting column (3), a sewage discharge cavity (5) for discharging a cement mixture is arranged at the other end of the pipe jacking machine body, a plurality of conveying cavities (6) are uniformly distributed on the periphery of the mounting column (3), the axis of each conveying cavity (6) is parallel to the axis of the mounting column (3), a partition plate (7) is installed at one end, far away from the cutting tool (2), a second motor (8) is installed at one side, far away from the cutting tool (2), an output shaft of the second motor (8) penetrates through the partition plate (7) and then is connected with a rotating shaft (9), and cutting blades (10) are installed at the other end of the rotating shaft (9), install helical blade (11) that are used for carrying cement mixture on rotation axis (9), blowdown chamber (5) front end and transport chamber (6) intercommunication, helical blade (11) will be located the cement mixture of cutting tool (2) department and carry to blowdown chamber (5) in, be equipped with blow off pipe (12) in blowdown chamber (5), the other end and the outside blowdown pond of blow off pipe (12) are connected, install slush pump (13) on blow off pipe (12), install water injection subassembly (14) between cutting blade (10) and cutting tool (2).

2. The earth balance pipe jacking device as claimed in claim 1, wherein the cutting tool (2) comprises a tool disc (21), the inner side of the tool disc (21) is rotatably connected with the pipe jacking machine body (1), the center of the inner side of the tool disc (21) is connected with an output shaft of the first motor (4), the tool disc (21) is provided with a plurality of fan-shaped mud inlet holes (22), the center of the outer side of the tool disc (21) is connected with a crushing blade (23), and the outer side of the tool disc (21) is provided with a plurality of propelling blades (24).

3. Soil balanced pipe jacking device according to claim 2, wherein the tool disc (21) is provided with a slip ring (25) on the inside, the pipe jacking body (1) is provided with an annular groove for accommodating the slip ring (25), a bearing is arranged between the slip ring (25) and the annular groove, and the slip ring (25) and the annular groove are rotatably connected through the bearing.

4. The earth balanced pipe jacking device according to claim 3, wherein the crushing blades (23) are of a sheet structure, the section of the crushing blades is an isosceles triangle, and the sharp corners of the crushing blades (23) face outwards.

5. The earth balance pipe jacking device as claimed in claim 1, wherein the water injection assembly (14) comprises a hollow water injection ring (141) embedded in the front end of the inner wall of the pipe jacking machine body (1), the inner cavity of the water injection ring (141) is used for containing water, a plurality of water nozzles (142) are installed on the inner side of the water injection ring (141), and the water injection ring (141) is connected with a water inlet pipe (143).

6. The earth balanced push pipe unit according to claim 5, characterized in that a plurality of supporting columns (144) are installed on the inner side of the water injection ring (141), and the height of the supporting columns (144) is higher than that of the water nozzles (142).

7. The earth balance pipe jacking device according to claim 1, wherein a support ring (15) is mounted at one end of the rotating shaft (9) close to the cutting tool (2), the support ring (15) is rotatably connected with the rotating shaft (9), a plurality of connecting rods (16) are connected to the outer side wall of the support ring (15), and the ends of the connecting rods (16) are connected with the inner wall of the pipe jacking machine body (1) or the outer wall of the mounting column (3).

8. An earth balanced jacking equipment according to claim 1, wherein the inlet of the drain pipe (12) is flared open.

9. Earth balanced jacking device according to claim 1, wherein the conveying chamber (6) is a cylindrical chamber.

10. The earth balanced jacking device of claim 6, wherein the support columns (144) are rubber columns.